George Frederick McGrath (19 September 1885 – 6 August 1956) was a British field hockey player. He won a gold medal at the 1920 Summer Olympics in Antwerp.
McGrath was born in Camberwell, the son of a post office worker.
He played club hockey for Wimbledon Hockey Club from 1912, a club he revived after World War I, and became its honorary secretary and treasurer. During the war he served as a lieutenant at the Royal School of Artillery.
At the 1920 Olympic Games in Antwerp, he represented Great Britain at the hockey tournament.